Terumo Kabushiki Kaisha

Satoru Suehara

Akihiro Takahashi

Satoshi Sawada

Ryosuke Yamazaki

Seyedriyah Hazama

Taiga Nakano

Yasushi Kinoshita

Katsuhiko Shimizu

Kenichi Kumoyama

Yousuke Ootani

Mayu Hata

Keiko Otsu

Ryousuke Yamazaki

An oxygen measurement device includes a catheter including a flexible hollow shaft, the flexible shaft having an open port configured to allow urine from a bladder to flow into the open port, and a urinary passage in communication with the open port configured to discharge the urine; and an oxygen sensor including an oxygen sensor main body capable of detecting oxygen in the urine, the oxygen sensor being disposed in the catheter and configured such that the oxygen sensor main body is in contact with the urine flowing in the urinary passage.

Oxygen measuring device

An irradiation device and a treatment method capable of effectively irradiating an antibody-photosensitive substance bound to a cell membrane of cervical cancer with near-infrared light. The treatment method for cervical cancer includes: intravenously administering an antibody-light-absorbing substance; inserting a second irradiation device including a second optical fiber from a vagina into a cervix 12 hours to 36 hours after the intravenous administration; performing irradiation by using the second optical fiber included in the second irradiation device in a direction substantially perpendicular to the second optical fiber; drawing at least a part of a deformation portion included in the second irradiation device to an external uterine ostium and inflating the deformation portion so as to follow a shape of an organ; emitting near-infrared light by using the second optical fiber in a substantially distal direction and/or the direction substantially perpendicular to the second optical fiber; and contracting the deformation portion.

Irradiation device and treatment method

An oxygen measurement device constituting an oxygen measurement system includes a urethral catheter and an oxygen sensor main body. The urethral catheter has a shaft in which a urethral catheter lumen that enables circulation of urine flowed in via a urethral catheter port from inside a bladder is formed; and has a hub in which a urine lumen that is provided at a proximal end of the shaft and communicates with the urethral catheter lumen is formed. The oxygen sensor main body is provided on the hub in a manner capable of being brought into contact with urine circulating in the urine lumen, and detects oxygen in the urine.

Oxygen measurement device and oxygen measurement system

A monitoring system which constitutes an oxygen measurement system includes: an oxygen partial pressure calculation unit that calculates an oxygen partial pressure in urine based on an output signal from the oxygen measurement device; a monitor that displays the oxygen partial pressure calculated by the oxygen partial pressure calculation unit; and a display control unit that changes a format of display of the oxygen partial pressure displayed by the monitor according to the flow rate of urine acquired based on the output signal from the oxygen measurement device.

Monitoring system and oxygen measurement system

A medical treatment tool includes a bendable tube configured to be inserted into a body of a patient; an operating body disposed in the bendable tube and configured to cause bending of the bendable tube, the operating body including: a plurality of divided members that are divided from each other along axially extending edges of adjacent divided members, portions of the divided members forming a tubular structure, and an annular connecting portion, an outer surface of the annular connecting portion being continuous with outer surfaces of the divided members; and a cylindrical member located inside the operating body. Each divided member includes at least one cutout portion formed between the tubular structure and the annular connecting portion. The cylindrical member is in contact with inner surfaces of the divided members.

Medical treatment tool

A method for use with a balloon catheter device that includes a selectively bendable portion with a balloon disposed thereon, a control device for controlling bending of the selectively bendable portion, and a camera located at an end of a distal portion, includes inserting the distal portion into the nostril while the distal portion is straight; viewing an image provided by the camera; stopping insertion of the distal portion after the ethmoidal bulla is viewed in the image; articulating the distal portion in an upward direction to view the opening to the frontal sinus ostium or a downward direction to view the opening to the maxillary sinus ostium using the control device; inserting the distal portion into the frontal sinus ostium or the maxillary sinus ostium while the distal portion remains in the bent position; and inflating the balloon in the frontal sinus ostium or the maxillary sinus ostium.

Methods for treating sinus ostia using balloon catheter devices having a bendable balloon portion

An actuating member for making a flexible elongated member perform a predetermined action includes a push/pull member having a tip side and a base end side, the push/pull member including: a first moving portion and a second moving portion that are located on the base end side of the push/pull member and are movable relative to one another along an axis of the push/pull member, a first extending portion that extends from the first moving portion towards the tip side of the push/pull member, and a second extending portion that extends from the second moving portion towards the tip side of the push/pull member; an operating member that is rotatable about an axis that intersects an axis of the push/pull member, the operating member being configured such that rotation of the operating member causes movement of the first moving portion and the second moving portion.

Actuating member and medical apparatus

An actuating member for making a flexible elongate member for medical use perform a predetermined action. The actuating member includes a push/pull member, an operating member, and a cam member. The push/pull member includes a first moving portion and a second moving portion, which are movable relative to each other. The push/pull member is pushed/pulled in conjunction with a movement of the first moving portion and the second moving portion. The operating member is rotatable about an axis in a direction intersecting an axial direction of the elongate member. The cam member moves the first moving portion and the second moving portion in conjunction with rotation of the operating member. The push/pull member makes the elongate member perform at least one of (i) an advance/retraction action and (ii) a bending action by transmitting the movement of the first moving portion and the second moving portion to the elongate member.

Actuating member and medical device

An actuating member for making a flexible elongate member for medical use perform a predetermined action includes a push/pull member, an operating member, and an advancing member. The push/pull member includes a first moving portion and a second moving portion, which are movable relative to each other. The push/pull member is pushed/pulled in conjunction with a movement of the first moving portion and the second moving portion. The operating member effects the movement of the first moving portion and the second moving portion. The advancing member includes a narrowed portion that moves the first moving portion and the second moving portion in conjunction with an operation of the operating member. The push/pull member makes the elongate member perform at least one of (i) an advance/retraction action and (ii) a bending action by transmitting the movement of the first moving portion and the second moving portion to the elongate member.

An actuating member, which makes a flexible elongated member for medical use perform a predetermined action, includes a push/pull member and an operating member. The push/pull member includes a first moving portion and a second moving portion which are disposed on a proximal side and are movable relative to each other, a first extending portion that extends from the first moving portion, and a second extending portion that extends from the second moving portion. The push/pull member is pushed/pulled in conjunction with a movement of the first moving portion and the second moving portion. The operating member is rotatable in a circumferential direction of the elongated member. The operating member includes a first guide portion and a second guide portion, which guide the first moving portion and the second moving portion. The push/pull member is capable of making the elongated member perform an advance/retraction action and/or a bending action.

An actuating member includes: a first movement member and a second movement member which are located at a proximal side of the elongated member and are configured to be relatively movable toward and away from each other along an axial direction of the elongated member; a push-pull member that includes a first connection portion configured to be connected to the first movement member, a first extension portion extending from the first connection portion toward a distal side in the axial direction of the elongated member, a second connection portion configured to be connected to the second movement member, and a second extension portion extending from the second connection portion toward the distal side in the axial direction of the elongated member; and an operation member configured to operate the movement of the first movement member and the second movement member.

An actuating member for causing a flexible elongated member for medical use to perform a predetermined curving motion includes a push-pull member including a first moving part and a second moving part which are configured to be movable relative to one another in an axial direction of the elongated member, the first moving part and the second moving part being pushable and pullable so as to cause the elongated member to curve in the axial direction of the elongated member; a curving motion restricting member which is configured to be movable in the axial direction of the elongated member, and which is configured to restrict curving of at least a portion of the elongated member; and an operation member configured to operate movements of the first moving part, the second moving part, and the curving motion restricting member.

Actuating member and medical instrument

A treatment instrument for medical use includes a tubular insertion portion that includes a curvable flexible part, the tubular insertion portion being insertable into a body of a patient; and a dilating body that is provided at an outer circumference of the flexible part, the dilating body being configured to dilate in a radial direction relative to the flexible part. The tubular insertion portion includes a reduced-diameter part that is provided at a distal end of the tubular insertion portion in an axial direction, the reduced-diameter part having an outer diameter that is smaller than an outer diameter of the tubular insertion portion at a location proximal of the reduced-diameter part. A distal part of the dilating body is fixed to at least the reduced-diameter part.

Growing community of inventors

Kanagawa, Japan

Satoru Suehara